conventional bridgework for undergraduate dentists

Question 1

What is conventional bridgework?

Answer 1

Fixed prosthesis replacing missing teeth where abutments are natural teeth and the retainers are indirect restorations

Conventional bridgework is a dental solution for missing teeth, relying on existing teeth for support.

Question 2

What is an abutment in the context of a conventional bridge?

Answer 2

The prepared tooth onto which the bridge fits

Abutments are crucial for providing stability to the bridge.

Question 3

What is a retainer?

Answer 3

The indirect restoration for the abutment - crown

Retainers help secure the bridge in place.

Question 4

What is a connector in a conventional bridge?

Answer 4

Join between false tooth and retainers on either side

Connectors provide structural integrity to the bridge.

Question 5

What is a pontic?

Answer 5

The prosthetic tooth/teeth

Pontics replace the missing teeth in a bridge.

Question 6

What is a saddle in the context of a conventional bridge?

Answer 6

The edentulous area that is going to be replaced by the pontic

The saddle is the site where the pontic will be positioned.

Question 7

which is the retainer

Answer 7

1
crowns

Question 8

which is the connector

Answer 8

2

Question 9

which is the pontic

Answer 9

3

Question 10

which are the abutment teeth

Answer 10

4

Question 11

which is the saddle

Answer 11

5

Question 12

What is a fixed-fixed bridge design used for?

Answer 12

Used for longer span bridgework,

This design provides stability for extended spans.

Question 13

can the pontic support load in fixed-fixed bridge design?

Answer 13

yes

Question 14

the abutment teeth need to have what for a fixed-fixed bridge design?

Answer 14

same long axis

Question 15

What is a cantilever bridge design used for?

Answer 15

Maximum 2 units

A cantilever bridge is simpler and can be very successful.

Question 16

is the pontic mesial or distal in a cantilever bridge design? why?

Answer 16

mesial as less occlusal loading

Question 17

can the pontic support load in the cantilever bridge?

Answer 17

No loading on pontic in ICP or excursion

Question 18

Describe a spring cantilever bridge.

Answer 18

Crown on a distal tooth, then a bar sits in the palate connecting it to a pontic which hangs in the space

This design is considered outdated and expensive but can last a long time.

Question 19

describe a fixed-moveable bridge design?

Answer 19

Male component on the distal larger abutment, female component mesial

This design helps distribute stress effectively.

Question 20

what is a fixed moveable bridge used for?

Answer 20

Used for mal-aligned teeth with different long axis angulations

Question 21

fixed-moveable bridges have stress breaking, what is this?

Answer 21

distributes stress so smaller abutment has less stress and occlusal loading on it than larger abutment

Question 22

What is a complex/hybrid bridge design?

Answer 22

Combination of designs

This design allows for more customized solutions.

Question 23

complex/hybrid bridge designs can include pier abutments, what are these?

Answer 23

teeth in between pontics, middle abutment acts as a pivot and minor retainer likely to spring

Question 24

What are the types of pontic designs? 3

Answer 24

• Ridge lap
• Modified ridge lap
• Hygienic

Each design serves different aesthetic and functional purposes.

Question 25

What is an advantage of modified ridge lap pontic?

Answer 25

Preserves buccal aesthetics of the bridge and easier to clean, overlaps on the buccal ## Footnote This design balances aesthetics and hygiene.

Question 26

what pontic design is this?

Answer 26

ridge lap

Question 27

what pontic design is this?

Answer 27

modified ridge lap

Question 28

what pontic design is this?

Answer 28

hygienic

Question 29

What is a hygienic pontic?

Answer 29

Doesn’t contact the ridge at all by at least 2mm ## Footnote This design enhances hygiene by minimizing contact with the gums.

Question 30

What is the first step in conventional bridge preparation?

Answer 30

Evaluate occlusion, guidance and long axis of teeth ## Footnote Proper evaluation is crucial for successful bridge placement.

Question 31

What is the next step after evaluating occlusion in bridge preparation?

Answer 31

Buccal depth grooves parallel to each other ## Footnote Creating grooves is important for accurate tooth preparation.

Question 32

What is involved in the preparation of the distal aspect of each tooth?

Answer 32

Ensuring they are parallel ## Footnote This ensures proper alignment and fit of the bridge.

Question 33

What is completed after interproximal and buccal reduction?

Answer 33

Do occlusal reduction ## Footnote Occlusal reduction is necessary for the final fit of the bridge.

Question 34

What should be preserved during palatal aspect preparation?

Answer 34

Cingulum where possible ## Footnote Preserving the cingulum maintains the integrity of the tooth structure.

Question 35

what bridge design is this?

Answer 35

spring cantilever